From: Russell King <rmk@arm.linux.org.uk>
To: clausen@conectiva.com.br (Andrew Clausen)
Cc: linux-fsdevel@vger.kernel.org, bug-parted@gnu.org,
linux-kernel@vger.kernel.org
Subject: Re: Partition IDs in the New World TM
Date: Mon, 22 Jan 2001 22:42:06 +0000 (GMT) [thread overview]
Message-ID: <200101222242.WAA00893@raistlin.arm.linux.org.uk> (raw)
In-Reply-To: <3A6CB49E.75B8937D@conectiva.com.br> from "Andrew Clausen" at Jan 22, 2001 08:30:54 PM
Andrew Clausen writes:
> Why is this necessary? Can't the RAID drivers probe the device for
> signatures, the same way file systems do?
One possible problem I can see here is to do with removal of RAID. Think
of a RAID-1 array (2 or more disks containing identical data). The
partition can be validly identified as an ext2 filesystem. But wait, it
has a RAID superblock at the end.
How do we know if this superblock is current or not? After all, a mke2fs
on the device won't remove it. Yes, you could fill the partition with
zeros and start again, or you could just change the partition ID.
--
Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html
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next prev parent reply other threads:[~2001-01-22 22:46 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-22 16:17 Andrew Clausen
2001-01-22 16:32 ` Brian Gerst
2001-01-22 16:47 ` Andrew Clausen
2001-01-22 21:39 ` Russell King
2001-01-22 22:30 ` Andrew Clausen
2001-01-22 22:42 ` Russell King [this message]
2001-01-22 23:28 ` Andrew Clausen
2001-01-22 23:35 ` H. Peter Anvin
2001-01-23 4:47 ` Andreas Dilger
2001-01-23 6:23 ` H. Peter Anvin
2001-01-23 19:26 ` Matt D. Robinson
2001-01-24 8:18 ` Andreas Dilger
2001-01-22 22:16 ` Glenn McGrath
2001-01-22 23:35 ` Jason Venner
2001-01-22 22:42 Andries.Brouwer
2001-01-22 17:35 ` Mark I Manning IV
2001-01-22 22:55 Andries.Brouwer
2001-01-23 15:46 Andries.Brouwer
[not found] <OF03708398.46274A87-ON872569DD.005CA0DE@LocalDomain>
2001-01-23 17:08 ` Andrew Clausen
[not found] <OF5F9BE7DB.C1ADFB0E-ON872569DD.006485CC@LocalDomain>
2001-01-23 18:35 ` Andrew Clausen
2001-01-23 22:01 ` Glenn McGrath
2001-01-24 13:40 ` Andrew Clausen
2001-01-24 10:28 Andries.Brouwer
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